在我的Objective-C代码中,我可以使用此方法查找view.subviews
的{{1}}:
button
但是如何通过Swift在-(UIButton*)findButtonInView: (UIView*)v {
for (UIView *subView in v.subviews) {
if ([subView isKindOfClass:[UIButton class]]) {
return (UIButton*)subView;
}
else if ([subView isKindOfClass:[UIView class]]) {
UIButton* btn = [self findButtonInView:subView];
if(btn) {
return btn;
}
}
}
return nil;
}
UIButton* searchButton = [self findButtonInView:self.searchBar];
中找到button
的方法?
如你所知,我不能像这个Swift方法那样返回view
:
nil
答案 0 :(得分:0)
class func findButtonInView(_ view:UIView) -> UIButton?{}